SeEnCreaTive
500+ Head-Fier
- Joined
- Oct 6, 2014
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- 269
Yeah, seems it usually is the other way around.
Right, it could be people confusing bass extension with quantity.
Guess I'll stick with getting the 50s. They should fall right in the middle (no matter how the bass is interpreted).
It's about air compliance. Open means there's nothing stopping the air from escaping or entering the back of the can. So it's rather easy for the driver to move since there's little resistance. Meaning big, low frequancy movements are easier;more bass. But this means it can be bloated, gooshy, loose, and can start taking over the mid range
With closed back, it's the opposite. There's less compliance. The driver has to compress the air to move so it's harder for it. This means that there's less bass, buts it's faster and much more controlled. Down side, less bass. Less extention. More sterile
Semi is of course a blend of the two.
Good thing is vents are suuuuper easy to tune. Tape on the vents inside or out works just fine. Tune to your liking.
Think of closing the door to a room. It probably closed nicely, Now open the window and close it again, chances are it closed harder then you exspected. The air was easily moved out of the way, so there was less resistance, resulting in a slight slamming.
Now ear cups/baffles are different than the back of the can. If the area that your ear sits in is sealed, you get more bass. If there are holes that lead into the cup or out side, there's less bass perseaved. But the same rules apply. Sealed is tighter. But fully sealed baffles can cause exsess pressure on your ear drums, so more volume contsiousness is needed. But should cuase a problem at reasible levels
Edit: all that being said, open makes for a wider more natural Soundstage. So the holy grail is wide open with tight clean sound. Orthrodynamics are good at this due to the speed of the driver. Cans like the he1000 use super huge drivers for bass and power, while being rediculously thin for speed. (And a bunch of other things that are above my knowlage)